[Feat] Opt-in feature flag to run local stack in Prague/Electra

docker/compose-spec-l1-services.yml

@@ -26,7 +26,6 @@ services:
       - ./config/l1-node/el/config.toml:/config/config.toml:ro
       - ./config/l1-node/jwtsecret.txt:/config/jwtsecret.txt:ro
       - ./config/l1-node/el/log4j.xml:/var/lib/besu/log4j.xml:ro
-      - ./config/l1-node/el/genesis.json:/config/genesis.json
       - local-dev:/data
     ports:
       - "8445:8545"
@@ -63,7 +62,6 @@ services:
       - ./config/l1-node/jwtsecret.txt:/config/jwtsecret.txt:ro
       - ./config/l1-node/cl/config.yaml:/config/config-file.yaml:ro
       - ./config/l1-node/cl/log4j.xml:/config/log4j.xml:ro
-      - ./config/l1-node/cl/network-config.yml:/config/network-config.yml:ro
       - local-dev:/data
     ports:
       - "9002:9000"
@@ -80,6 +78,7 @@ services:
       - /bin/bash
       - -c
       - |
+        PRAGUE=${PRAGUE} bash /generate-genesis.sh
         /usr/local/bin/eth2-testnet-genesis deneb \
         --config /config/network-config.yml \${L1_GENESIS_TIME:+--timestamp ${L1_GENESIS_TIME} \}
         --mnemonics /config/mnemonics.yaml \
@@ -90,4 +89,5 @@ services:
       - ./config/l1-node/cl/mnemonics.yaml:/config/mnemonics.yaml:ro
       - ./config/l1-node/cl/network-config.yml:/config/network-config.yml:ro
       - ./config/l1-node/el/genesis.json:/config/genesis.json
+      - ./config/l1-node/generate-genesis.sh:/generate-genesis.sh
       - local-dev:/data

docker/config/l1-node/cl/config.yaml

@@ -1,6 +1,6 @@
 #logging: "INFO"
 log-destination: "DEFAULT_BOTH"
-network: "/config/network-config.yml"
+network: "/data/l1-node-config/network-config.yml"
 data-storage-mode: "PRUNE"
 initial-state: "/data/l1-node-config/genesis.ssz"
 

docker/config/l1-node/el/config.toml

@@ -1,4 +1,4 @@
-genesis-file="/config/genesis.json"
+genesis-file="/data/l1-node-config/genesis.json"
 logging="INFO"
 data-path="/opt/besu/data"
 data-storage-format="FOREST"

docker/config/l1-node/generate-genesis.sh

@@ -0,0 +1,39 @@
+# Script to modify config files to enable Prague/Electra to run for the local stack
+# Runs on the 'l1-node-genesis-generator' Docker image entrypoint
+
+original_el_genesis_json_path="/config/genesis.json"
+original_cl_network_config_path="/config/network-config.yml"
+output_dir="/data/l1-node-config"
+modified_el_genesis_json_path=$output_dir/$(basename -- $original_el_genesis_json_path)
+modified_cl_network_config_path=$output_dir/$(basename -- $original_cl_network_config_path)
+
+mkdir -p $output_dir
+cp $original_el_genesis_json_path $modified_el_genesis_json_path
+cp $original_cl_network_config_path $modified_cl_network_config_path
+
+# Early exit if $PRAGUE feature flag is off
+if [ -z "$PRAGUE" ]; then
+  exit 0
+fi
+
+OS=$(uname);
+prague_time=$(    
+    if [ $OS = "Linux" ]; then
+        date -d "+32 seconds" +%s;
+    elif [ $OS = "Darwin" ]; then
+        date -v +32S +%s;
+    fi
+)
+
+# Add Prague config to modified Besu config
+jq --argjson prague_time "$prague_time" '.config.pragueTime = $prague_time' $original_el_genesis_json_path > $modified_el_genesis_json_path
+
+# Add Electra config to modified Teku config
+cat <<EOF >> $modified_cl_network_config_path
+ELECTRA_FORK_VERSION: 0x60000038
+ELECTRA_FORK_EPOCH: 1
+MAX_BLOBS_PER_BLOCK_ELECTRA: 9
+MIN_PER_EPOCH_CHURN_LIMIT_ELECTRA: 128000000000
+BLOB_SIDECAR_SUBNET_COUNT_ELECTRA: 9
+MAX_REQUEST_BLOB_SIDECARS_ELECTRA: 1152
+EOF